html,
body,
#app {
    width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #706f6f;
}

.flexac {
    display: flex;
    align-items: center;
}

.flexjc {
    display: flex;
    justify-content: center;
}

.scale12 {
    cursor: pointer;
    user-select: none;
    transition: all 0.4s;
}

.scale12:hover {
    transform: scale(1.2);
    transition: all 0.4s;
}

.game-box {
    position: relative;
    width: 100%;
    height: 100%;
}

.popup-box {
    padding: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -100%);
    background-color: #fff;
    user-select: none;
    border-radius: 10px;
}

.popup-title {
    font-size: 18px;
}

.popup-close-btn {
    font-size: 24px;
    cursor: pointer;
}

.popup-confirm-btn{
    margin-right: 10px;
    padding: 10px 20px;
    background-color: #4291ff;
    color: #fff;
    cursor: pointer;
    user-select: none;
    border-radius: 10px;
    letter-spacing: 1px;
}
.popup-cancel-btn{
    padding: 10px 20px;
    background-color: #9d9e9f;
    color: #000000;
    cursor: pointer;
    user-select: none;
    border-radius: 10px;
    letter-spacing: 1px;
}